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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> ENGINE MECHANICAL - 4.8L, 5.3L, AND 6.0L (3 Of 4) >> Off-Vehicle Repair Instructions (Part 2) >> Piston, Connecting Rod, and Bearings Cleaning and Inspection >> Measuring Piston Ring End Gap

Measuring Piston Ring End Gap

    IMPORTANT:
    • Do not attempt to file the end of the piston ring to achieve the proper end gap clearance.
    • Measure the piston ring in the cylinder in which it will be used.
  1. Place the piston ring into the cylinder bore 6.5 mm (0.25 in) below the top of the ring travel area.
  2. Insert a feeler gage and measure the piston ring end gap. Refer to Engine Mechanical Specifications (LR4 VIN V) or Engine Mechanical Specifications (LM7 VIN T) or Engine Mechanical Specifications (L33 VIN B) or Engine Mechanical Specifications (L59 VIN Z) or Engine Mechanical Specifications (LQ4 VIN U) or Engine Mechanical Specifications (LQ9 VIN N) .
    Fig 1: Measuring Piston Ring End Gap
    GM4968Courtesy of GENERAL MOTORS CORP.
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